Publications by authors named "J A Perez-Fidalgo"

Gestational breast cancer (GBC), defined as breast cancer (BC) diagnosed during pregnancy or the first-year post-partum, accounts for 6-15% of BC cases in women aged 20-44 years. GBC has worse prognosis than non-GBC, but reasons behind are not clear. The GEICAM/2012-03 Study (Molecular Characterization of Gestational Breast Cancer) is a multicenter prospective/retrospective observational registry of patients diagnosed with GBC.

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Purpose: To evaluate atezolizumab combined with platinum-based chemotherapy (CT) followed by maintenance niraparib for late-relapsing recurrent ovarian cancer.

Methods: The multicenter placebo-controlled double-blind randomized phase III ENGOT-OV41/GEICO 69-O/ANITA trial (ClinicalTrials.gov identifier: NCT03598270) enrolled patients with measurable high-grade serous, endometrioid, or undifferentiated recurrent ovarian cancer who had received one or two previous CT lines (most recent including platinum) and had a treatment-free interval since last platinum (TFIp) of >6 months.

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Article Synopsis
  • The study analyzes the rise in gastrointestinal stromal tumors (GISTs) incidence since GIST-specific coding started in 2001, using data from the National Cancer Institute's SEER Program.
  • It includes patients aged 20 and older diagnosed between 2000 and 2019, focusing on trends in incidence rates based on factors like race, ethnicity, and sex.
  • Findings show a significant increase in GIST incidence across most organ sites except the colon, with variations in rates observed by demographic factors.
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  • Prognostic biomarkers are important for understanding sporadic desmoid tumors (DT) due to their unpredictable nature; this study focused on gene expression differences between DTs located in the thoracic versus abdominal wall.
  • A retrospective analysis of 197 sporadic DT patients showed significant relationships between relapse-free survival (RFS) and factors like tumor size, location, and specific gene mutations, notably the CTNNB1 T41A and S45F mutations.
  • Results suggest that tumors in the abdominal wall have a better prognosis compared to extra-abdominal locations, with distinct gene expression profiles influencing cancer pathways related to their behavior and outcomes.
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In recent years, the incorporation of new strategies to the therapeutic armamentarium has completely changed the outcomes of epithelial ovarian cancer (EOC). The identification of new predictive and prognostic biomarkers has also enabled the selection of those patients more likely to respond to targeted agents. Nevertheless, EOC is still a highly lethal disease and resistance to many of these new agents is common.

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